64 12 530 Removing and installing / replacing combustion air blower (Thermo Top S): Installation:

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.

Observe tightening torque 64 12 8AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUE .

Fig 1: Removing Combustion Air Blower Unit (Thermo Top S)

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Replace sealing rings and ensure they are correctly seated.

Fig 2: Replacing Sealing Rings (Thermo Top S)

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Release screws, unclip rubber grommet and pull out combustion air blower.

Fig 3: Removing Combustion Air Blower (Thermo Top S)

Courtesy of BMW OF NORTH AMERICA, INC.